windows vista and HTTPS

[zied]

SALAM.
i'm working with windows vista. i made w RESTFUL web service using WCF serviceLibrary and it works correctly, but now i want secur it with a SSL certificate.
i made a certeficate using Win32oppenSSL and when i want o add this certificate to my port using netshe commande

netsh http add sslcert ipport=0.0.0.0:8733 certhash=a7efc21d67c296c4e89af8fce1bab194aa4e8c5f appid={b62379fe-d0ac-420e-85a8-9cbbc8704eb8}

i have the following error

Failed to add the SSL certificate, error: 1312
A specified logon session does not exist. It is perhaps already completede.

i execute it from CMD as an administrator.
have you any sollution or have you another way to secure my restful web service.
thank you.

[madankarmukta]

Check if this is helpful

http://social.technet.microsoft.com/Forums/en/winserversecurity/thread/4a2bcc5b-8845-4bda-a6ae-70a0503e9a6f

Thank you.